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Getting Started
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Data structures and transformations

Constants (astropy.constants)
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N-Dimensional Datasets (astropy.nddata)
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Models and Fitting (astropy.modeling)
Uncertainties and Distributions (astropy.uncertainty)

Files, I/O, and Communication

Unified File Read/Write Interface
FITS File Handling (astropy.io.fits)
ASCII Tables (astropy.io.ascii)
VOTable XML Handling (astropy.io.votable)
Miscellaneous: HDF5, YAML, Parquet, pickle (astropy.io.misc)
SAMP (Simple Application Messaging Protocol) (astropy.samp)

Computations and utilities

Cosmological Calculations (astropy.cosmology)
Convolution and Filtering (astropy.convolution)
IERS data access (astropy.utils.iers)
Data Visualization (astropy.visualization)
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Configuration System (astropy.config)
I/O Registry (astropy.io.registry)
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Astropy Core Package Utilities (astropy.utils)
Astropy Glossary

User Guide
Reference/API
SplineExactK...

SplineExactKnotsFitter#

class astropy.modeling.spline.SplineExactKnotsFitter[source]#

Bases: _SplineFitter

Fit a spline using least-squares regression.

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SplineSmoothingFitter

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SplineSplrepFitter

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